The Saudi ambassador to the United States Khalid bin Salman, brother of the powerful crown prince, has returned to Washington after leaving the US capital in the wake of the murder of journalist Jamal Khashoggi, an official said Wednesday. "His Royal Highness the Ambassador is in Washington" embassy spokeswoman Fatimah Baeshen told AFP. At the time, the US State Department said it would seek information from him regarding the incident upon his return.